This is a follow up to my previous on how to date your Marlin Model 60.
1960 - The Model 60 was introduced, a refined and more affordable (to produce and to buy) version of the model 99.
1968 - The Model 60 gets serial numbers courtesy of the 1968 Gun Control Act
1976 - the 2-piece feed throat was changed to a one-piece, the two are not completely interchangeable, you will need to change the cartridge lifter and lifter spring to make a new one piece fit in a gun made prior to 1976.
1976 - Marlin changed the front sight and magazine attachment, the old style used a one-piece sight and mag tube holder. The new ones used an under-barrel mag tube ring and a separate ramp sight.
1977 - Marlin changed the trigger guards, the oldest ones were aluminum and used three screws, they then went to plastic ones with two screws.
1980 - change to hammer & bolt??
1981 - The action retention system was changed, prior to 1981 the action was held in by two plastic pins, after 1981, the front used a metal pin the front trunnion that supported and aligned the front of the action, the rear plastic pin remained. You can use a newer action on an older rifle, simply find the correct size roll pin to replace the forward plastic pin.
1981 - The trigger guards were changed again, the new ones were thicker (middle one in pic below), in 1984 they added the slot for the Last Shot Hold Open (top one in pic below). The middle one is from a 1981 vintage rifle, and the bottom one is from a 60's vintage with the three screws.
1983 - Marlin ceases the use of the Glenfield name, that same year they stopped putting the checkering, oak leaf and squirrel embossing on the stocks (save for special editions).
1984 - the Last Shot Hold Open feature was added to the Model 60, a feature many consider to be the best update.
1985 - Marlin added the "mystery screw" to the bottom of the wrist (behind the trigger guard) it was added to strengthen the area that was prone to cracking.
1988 - The magazine was shortened from an 18-round capacity to a 15-round capacity, the magazine was now considerably shorter than the 22" barrel.
1999 - The barrel was shortened from 22" to 19" to match the shorter magazine.
2005 - the bolt handle changed, the older ones were hooked shaped and thicker (.401"), the newer ones are spindle shaped and thinner (.375").


















